Adjustable foldable trestle horse



Oct. 7, 1941. H. c. BERCHEM ETAL ADJUSTABLE FOLDABLE TRESTLE HORSE FiledMarch 20, 1940 Patented Oct. 7, 1941 j DJUsT ApnEEQLD e E TRESTLEiron-sn- 1 v Hubert o.

nereh m am John P. 'Schneide rQ v We StrPaul, Minn. g i

p v Appu aticntrasch 20,1940;seriar-Np.'324,998

la -s 59 -30496) Our invention 'r'elats to adjustable folding trestleswhich may,be easily and quickly collapsed and'which will assume a fiatposition when collapsed. so that a plurality of trestles may be stackedone above the other for storing or shipping purposes.

An object of the invention is to provide a trestle support in the formof a horse wherein the trestle beam is adjustable to advantageousheights.

A further object of the invention is to provide a device which, when setup, will afiord adjustability for scaifolding planks to various heightsfrom the floor, which heights can be easily and quickly varied.

A still further object of the invention is to provide a hinged rollerguiding means for the elevatable trestle member so that its verticalslotted members will be sustained in true vertical alignment with thehorse at all times and further, when set up upon finished floors, willnot mar the same.

With the foregoing and other objects in view, which will be mademanifest in the following detailed description and specifically pointedout in the appended claims, reference is had to the drawing for anillustrative embodiment of the invention herein.

Figure 1 is an isometric perspective of the improved trestle in itscollapsed position.

Figure 2 is an isometric perspective of our invention showing thetrestle in an elevated position.

Figure 3 is an isometric perspective of the collapsing hinge sustainingthe guiding roller which keeps the vertical adjustable members of theelevated trestle in true vertical position with respect to the horseunder all conditions.

Figure 4 is a cross section of the protective shoe fitted to each of thelegs and also to the bases of the vertical trestle members.

In referring to the drawing, A represents the horizontal top bodyportion of a horse which is composed of a division member I and two sidemembers 2. The division member I is of such length as the distancebetween the elevatable vertical members l1, while the side members 2project beyond the length of members I and thereby provide the pockets 3in which the vertical members I! travel up and down.

The side top body members 2 are provided with leg hinges 4 to which aresecured the horse legs 5 which in turn sustain a series of reinforcingcross slats or rungs 6. Each of the legs at the lower extremities areprovided with shoes I snugly fitting. the foot 8. Each shoe is held tothe foot 8.by the clamping head 9 locking itself intoa recess ID in thefoot of theleg.

Each pair of legs'is provided witha series of struts or brace hinges I Iwhich sustain hinged strut members I2. The strut members [2 are hingedlyconnected by the folding hinge l3 upon whose elongated hinge pin N thereis positioned an inwardly supported guide roller l5.

The elevatable trestles top member I6 is supported upon verticalslidable elevating members I! which are braced and locked together atthe bottom by a brace member. l8 arranged in parallel alignment to thetop. The holes 19 in the vertical elevating member I! are so placed asto obtain a uniform leveling extension for the elevatable trestle. Thereare likewise provided a series of lock pins 20 secured to pin chains 2|which in turn are made fast to the members 2 by a chain eye 22. Theselook pins 20 are forced through the holes l9 when the vertical elevatingtrestle members I! have been elevated to a predetermined height andallowed to rest atop the horizontal top body portion A of the horse.

Toward the far sides of the vertical elevating members I! there areprovided vertical slots 23 in which the guide rollers 15 travel. Thefoot ends of the vertical elevating members I! are likewise providedwith a series of shoes 1 similarly constructed as previously described.

It will be seen, that in operation, should the carpenter be required touse the trestle horse upon a finished floor, since trestle horse isequipped with shoes made of some resilient material as rubber, the floorwould not be marred or should the user of the trestle horse suddenlypull both pins 20 from out of their locking holes l9 and allowing theelevatable trestle to fall and causing the feet to strike the floor, nodamage can result due to the fact that its feet are protected by shoeswhich ward off floor injury.

Then, likewise, should the trestle horse be extended to any given heightby the lifting of the trestle member l6 above the horse proper, thestability of the vertical trestle members I! is made rigid, that is tosay, there can be no wobble of the vertical members I! due to the factthat the rollers l5 within the slots 23 of the vertical members I! willkeep the vertical members I! in perfect perpendicular alignment withrespect to the horse proper. It will be understood that various changesin the detailed construction may be made Without departing from thespirit or scope of the invention as defined.

We claim:

1. An adjustable, foldable trestle horse including an elevatable loadsupporting bar, a pair of uprights depending therefrom, a depressedroller guide within said uprights and a guide within said horse whereinthe uprights are slidably mounted, foldable hinged distending leg strutsincluding a center hinge, a pair of hinged leg members each foldabletoward the other, and a guide roller mounted upon the hinge pin of thecenter hinge of the foldable hinged distending leg struts, said guideroller cooperating with and traveling within said guides within thedepending uprights to retain a true perpendicular position for saiduprights to said horse in any selected position of adjustmentsubstantially as described.

2. In an adjustable foldable horse, in combination with a hinged legbase including legs hinged at the upper ends to the horizontal topportion of the horse, a vertical guide within said horizontal topportion of the horse, a horizontal load supporting bar, a pair ofuprights depending from the horizontal load supporting bar, a depressedroller guide within said uprights, and

a pair of foldable hinged leg distending struts foldable upon each otherbetween said hinged legs, an extended hinge pin for the central struthinge, a guide roller mounted upon the hinged pin of the foldable hingedleg distending struts, said guide roller cooperating with and travelingwithin the depressed roller guides within the uprights, and a shoepositioned upon the bottom of said uprights to act as limiting means oftravel of the guide roller within the depressed roller guide as fullyset forth.

3. In an extensible, adjustable, foldable trestle horse, a loadsupporting member slidably mounted within said horse, roller guide meanscarried by the load supporting bar members and by the foldable trestlehorse, to slidably retain said load supporting bar member in a trueperpendicular position with respect to the horse, and shoes for thebases of the slidable load supporting bar member limiting the uprighttravel of the horizontal load supporting member.

HUBERT C. BERCHEM. JOHN P. SCHNEIDER. V

